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PITBULL TRANSMISSIONS

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PITBULL TRANSMISSIONS · GMC HEAVY-DUTY DIVISION

GMC

PROFESSIONAL-GRADE POWER REQUIRES PROFESSIONAL-GRADE PRECISION.

From everyday GMC platforms to Duramax-powered Sierra Heavy Duty work trucks, Pitbull delivers advanced diagnostics, complete transmission reconstruction and performance solutions engineered for serious torque, towing and commercial use.

GMC Sierra Heavy Duty transmission service in Magnolia Texas
GMC PLATFORMS SERVICED
GMC CANYON SIERRA 1500 SIERRA 2500HD SIERRA 3500HD YUKON YUKON XL
The Allison 1000 and 10L1000 are primarily associated with compatible Sierra Heavy Duty and Duramax applications. Transmission availability varies by year, engine and configuration.
DURAMAX TRANSMISSION EXPERTISE

BUILT TO CONTROL HEAVY-DUTY TORQUE.

Heavy towing, commercial workloads and high operating temperatures expose every weakness inside a transmission. Pitbull finds the real cause of failure and reconstructs the unit around the demands placed on your GMC.

01
PROVEN DURAMAX HEAVY-DUTY PERFORMANCE

ALLISON 1000

Allison 1000 transmission rebuilt by Pitbull Transmissions
ALLISON 1000 HEAVY-DUTY RECONSTRUCTION

PROVEN STRENGTH. REBUILT FOR THE WORK AHEAD.

The Allison 1000 earned its reputation in demanding Duramax applications. But towing, heat, clutch wear, pressure loss and torque-converter problems can eventually compromise engagement, shift quality and reliability.

01 ROOT-CAUSE DIAGNOSTICS We identify pressure loss, clutch damage, torque-converter wear and hydraulic-control problems.
02 COMPLETE RECONSTRUCTION Critical internal components are inspected, measured and rebuilt for dependable heavy-duty operation.
03 WORK-TRUCK PREPARATION The rebuild is approached around towing, payload, commercial duty and the vehicle’s actual use.
COMMON APPLICATIONS SELECT GMC SIERRA 2500HD · SIERRA 3500HD · DURAMAX APPLICATIONS
02
MODERN TEN-SPEED DURAMAX CONTROL

10L1000

GMC 10L1000 transmission rebuilt by Pitbull Transmissions
10L1000 TEN-SPEED HEAVY-DUTY RECONSTRUCTION

TEN SPEEDS. ZERO ROOM FOR GUESSWORK.

The modern 10L1000 combines advanced electronic controls, multiple gear ratios and heavy-duty torque capacity. When it begins shifting harshly, hesitating or overheating, precise diagnostics are essential before further damage develops.

01 ADVANCED DIAGNOSTICS Electronic data, operating pressure and temperature behavior are examined before the unit is opened.
02 TEN-SPEED PRECISION Internal clearances, clutch systems, hydraulic controls and critical components receive detailed inspection.
03 HEAVY-DUTY PERFORMANCE The system is prepared for consistent shifting under towing, payload and commercial working conditions.
COMMON APPLICATIONS SELECT LATER GMC SIERRA 2500HD · 3500HD · DURAMAX APPLICATIONS
THE PITBULL STANDARD

YOUR GMC NEEDS MORE THAN A REPAIR. IT NEEDS THE RIGHT ANSWER.

Your GMC carries your equipment, your business and your ability to keep moving. Every diagnosis begins with honesty, every recommendation is explained clearly and every rebuild is completed with premium-level precision.

FREE INITIAL DIAGNOSIS
6 HR SELECT REPAIR DELIVERY
24 MO WRITTEN WARRANTY
REAL TRUCKS · REAL RESULTS

GMC OWNER TESTIMONIALS

See what truck owners say after experiencing Pitbull diagnostics, communication and premium transmission rebuilding.

Watch a GMC transmission customer testimonial
▶ CUSTOMER STORY 01 WATCH TESTIMONIAL
Watch an Allison transmission customer testimonial
▶ CUSTOMER STORY 02 WATCH TESTIMONIAL
Watch a GMC Duramax transmission testimonial
▶ CUSTOMER STORY 03 WATCH TESTIMONIAL
YOUR GMC IS TELLING YOU SOMETHING.

HOW MUCH LONGER WILL YOU WAIT TO FIND THE REAL PROBLEM?

A delayed shift, vibration, leak, warning light or loss of pulling power rarely fixes itself. Find the real cause before the damage becomes more expensive.

CALL PITBULL NOW (281) 266-0370 REQUEST A FREE DIAGNOSIS →